Which molecule is responsible for the blue color in blue essential oils? Choose one answer. a. chamazulene, C15 H16 b. proazulene, C15 H20 c. chamazulene, C14 H16 d. proazulene, C16 H20
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- Which of the following substances aren't phenolics? a. lignin b. isoflavones c. isoflavones d. alkaloids e. anthocyaninsThe molecule eugenol will be found in the following essential oils: (Select all that apply) Choose at least one answer. a. clove b. sandalwood c. allspice d. cinnamon leafPublished studies indicate that all of the following essential oils have antitumoral properties except: Choose one answer. a. Brazilian rosewood b. Greek sage c. cypress hiba d. rose
- All of the following are cofactors of SOD (superoxide dismutase) EXCEPT? A. Zinc B. Maganese C. Calcium D. CopperWhat type of linkage is catalyzed by peptidyl transferase activity? a. anhydride b. mixed anhydride c. amide d. esterEdman's reagent is a. mercaptaethanol O b. dansyl chloride (1- dimethylamino-naphthalene- 5-sulfonyl chloride) O c. phenylisothiocyanate (PITC) O d. cynogen bromide
- A mixture containing glutamic acid, arginine, phenylalanine and valine was subjected to anion exchange chromatography at pH 7.0. Which of the amino acids interacted with the resin (anion exchanger) and last to be eluted with a buffer of decreasing pH? A. Glu B. Val C. Phe D. ArgWhat is the nomenclature for the fatty acid shown below? A. 20:8(D5,6,8,9,11,12,14,15) B. 20:8(D6,7,9,10,12,13,15,16) C. 20:4(D5,8,11,14) D. 20:4(D6,9,12,15)After the removal of all sugar units from a ganglioside, what molecule remains? A. sphingosine B. a ceramide C. a glycerol D. a phosphate
- Essential oils are fat soluble and attracted to lipids and are, therefore, considered: Choose one answer. a. oleophobic b. hydrophilic c. lipophilic d. amphiphilicChoose the product(s) for the hydrogenation of corn oil. Check all that apply. a. ethylene glycol b. glycerol c. a more saturated fat d. linoleic acidStarch consists ofSelect one: a.Unbranched amylose and unbranched amylopectin b.Branched amylose and branched amylopectin c.Branched amylose and unbranched amylopectin d.Unbranched amylose and branched amylopectin